Hello!
I use Segger Embedded Studio. Ubuntu 18.04
I'm trying to build mqtt_publisher project from zephyr samples.
And get error:
undefined reference to `sys_rand32_get'
I'm using nRF Connect SDK Project.
All require stuff I download following all step from nRF Connect start guide.

I copied files from samples folder, to my custom folder.
I also build from samples folder, result the same.